February weather forecastMarietta, IL
February
Weather in February
The last month of the winter, February, is a wintry month in Marietta, Illinois, with temperature in the range of an average low of 23°F (-5°C) and an average high of 36.3°F (2.4°C).Temperature
The average high-temperature in February, at a cold 36.3°F (2.4°C), reveals a modest deviation from January's 31.5°F (-0.3°C). Throughout the month of February, Marietta sees a steady low-temperature average of 23°F (-5°C).Humidity
The average relative humidity in February is 79%.Rainfall
In Marietta, in February, during 4.7 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Marietta, during the entire year, the rain falls for 131.7 days and collects up to 22.48" (571mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Marietta, in February, during 6.8 snowfall days, 2.13" (54mm) of snow is typically accumulated. Throughout the year, there are 27.4 snowfall days, and 9.21" (234mm) of snow is accumulated.Daylight
In Marietta, Illinois, the average length of the day in February is 10h and 41min.On the first day of February, sunrise is at 7:11 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 5:52 pm CST.
Sunshine
In February, the average sunshine is 4.4h.UV index
The months with the lowest UV index in Marietta are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 2 during February leads to these instructions:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in February
Marietta, IL
- Average high temperature in February: 36.3°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in February: 23°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in February
Marietta, IL
- Average pressure in February: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in February
Marietta, IL
- Average wind speed in February: 10.3mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in February
Marietta, IL
- Average humidity in February: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in February
Marietta, IL
- Average rainfall in February: 1.1"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.94").
Average rainfall days in February
Marietta, IL
- Average rainfall days in February: 4.7 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (4.7 days).
Average snowfall in February
Marietta, IL
- Average snowfall in February: 2.13"
The month with the highest snowfall is January (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in February
Marietta, IL
- Average snowfall days in February: 6.8 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in February /
Average sunshine in February
Marietta, IL
- Average daylight in February: 10h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in February: 4h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in February
Marietta, IL
- Average sunshine days in February: 17 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in February
Marietta, IL
- Average UV index in February: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in February
Marietta, IL
- Average cloud cover in February: 54
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in February
Marietta, IL
- Average visibility in February: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





